I don't really follow Deadpool (or any one comic in general) but from what I have read, I really liked how he breaks the 4th wall and how he is unapologetically insane, I seem to remember hearing somehow that he learned he was just a comic book character and that's why he breaks the 4th wall so much, plus it made him immortal to learn the secret of his universe... or maybe I just dreamed that after a bad chilli dog...